345784446 has 48 divisors (see below), whose sum is σ = 858918528. Its totient is φ = 98485200.

The previous prime is 345784421. The next prime is 345784489. The reversal of 345784446 is 644487543.

345784446 is a `hidden beast` number, since 34 + 578 + 4 + 4 + 46 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37561 + ... + 45851.

It is an arithmetic number, because the mean of its divisors is an integer number (17894136).

Almost surely, 2^345784446 is an apocalyptic number.

345784446 is an abundant number, since it is smaller than the sum of its proper divisors (513134082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345784446 is a wasteful number, since it uses less digits than its factorization.

345784446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8637 (or 8634 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 45.

The square root of 345784446 is about 18595.2802076226. The cubic root of 345784446 is about 701.8890783421.

The spelling of 345784446 in words is "three hundred forty-five million, seven hundred eighty-four thousand, four hundred forty-six".